Dahl, T. 2006. Status and Trends of Wetlands in the Conterminous United States, 1998 to 2004. United States Fish and Wildlfie Service, Washington, DC.

Assessment, wetlands, protection

https://www.fws.gov/wetlands/Documents/Status-and-Trends-of-Wetlands-in-the-Conterminous-United-States-1998-to-2004.pdf

This study reports measurements of wetland trends in the conterminous United States between 1998 and 2004. The trend report of this data showed that, for the first time, net wetland gains surpassed net wetland losses (net gain of 191,750 wetland acres nationwide).